Home / 38,681.11-58,030.35-12,387.43

Finding the Fourth Proportional to 38,681.11, 58,030.35 and 12,387.43

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Solution

The fourth proportional to 38,681.11, 58,030.35 and 12,387.43 is: 18,583.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,681.11 : 58,030.35 = 12,387.43 : x
  2. Step 2: Convert to fraction form
    38,681.11/58,030.35 = 12,387.43/x
  3. Step 3: Cross multiply
    38,681.11x = 58,030.35 × 12,387.43
  4. Step 4: Simplify right side
    38,681.11x = 718,846,898.50
  5. Step 5: Solve for x
    x = 718,846,898.50/38,681.11
  6. Step 6: Final answer
    x = 18,583.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.